Park Geun-hye: South Korea lawmakers vote to impeach leader
The motion passed by 234 votes to 56, meaning some members of Ms Park's ruling Saenuri party voted in favour.
Hwang Kyo-ahn, the country's prime minister, has become interim president.
Thousands of people took to the streets in recent weeks demanding Ms Park's removal. After the vote, she again apologised that she had "created this national chaos with my carelessness".